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Lifetime Warranty · 30-Day On-Water Trial
⭐ Rated 4.95 by 1,500+ Paddlers
Free Shipping on Orders $100+
Lifetime Warranty · 30-Day On-Water Trial
⭐ Rated 4.95 by 1,500+ Paddlers
Free Shipping on Orders $100+
Lifetime Warranty · 30-Day On-Water Trial
⭐ Rated 4.95 by 1,500+ Paddlers
4.5" Surf Fin Set (4 Fins) Fin Hydrus Board Tech

4.5" Surf Fin Set (4 Fins)

A set of four flexible 4.5-inch surf fins, built for moving water. They flex before they break, so when a fin contacts a rock or the bottom, the material bends and springs back instead of snapping the fin or damaging your board.

These are river fins. The give that protects them on rocky, shallow lines is the same give that keeps a hard impact from cracking a fin box. Buy the set of four as a backup, a replacement, or a full swap.

Fits the Axis model Hydrus river boards and the Hydrus iSUP board.

$ 38.00
In stock · ships within 24 hours
$ 38.00
Quick Facts

Why This One

  • Set of four 4.5-inch flexible surf fins.
  • Flex before they break. The material bends on impact instead of cracking the fin or the board.
  • Built for rivers and moving water.
  • Fits the Axis model Hydrus river boards and the Hydrus iSUP board.
Honest Fit

Perfect For (And Not For)

Great For
  • Axis model Hydrus river boards and the Hydrus iSUP board
  • Rocky, shallow river running where a rigid fin would snap
  • Replacing surf fins worn or lost on moving water
  • Keeping a full backup set of four on hand
Not Right For You If
  • Flatwater touring or racing where you want a single dedicated tracking fin
  • You only need one center fin replacement

Verified Reviews

Still Have Questions?

We are real paddlers. Text or DM us before you buy. We'd rather you get the right gear than make a sale.

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Lifetime Warranty
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Since 2012
13+ years building boards
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30-Day On-Water Trial
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